The UN Wants To Change the Gross Domestic Product as the Indicator of the Country's Wealth. So what is the problem with the GDP?

The gross domestic product (GDP) is one the primary indicators used to gauge the health of a country's economy. It represents the total dollar value of all goods and services produced over a specific time period - you can think of it as the size of the economy.

Watch the Youtube video for more on the GDP. 
https://www.youtube.com/watch?v=jQWnfFiWUYE